Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/trpdev/public_html/vendor/symfony/framework-bundle/Tests/Templating/DelegatingEngineTest.php:21 Stack trace: #0 {main} thrown in /home/trpdev/public_html/vendor/symfony/framework-bundle/Tests/Templating/DelegatingEngineTest.php on line 21